Serum or plasma substance concentration for angiotensinogen
This test measures the level of angiotensinogen, a protein in your blood that plays a role in regulating blood pressure and fluid balance.
["Angiotensinogen helps control how your body handles fluids and blood pressure."]
Key facts at a glance
- LOINC
- 29964-4
- Short code
- ENA SS-A IgG Ser IA-aCnc
- Synonyms
- ENA SS-A IgG Ser IA-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia
- CPT
- 82784
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why Is This Test Done?
Your healthcare provider may order this test to check for conditions affecting blood pressure regulation, such as certain types of kidney disease, liver disease, or inherited disorders like hyperangiotensinogenemia. It may also be used in research or specialized clinical settings.
What Does the Test Involve?
A blood sample is taken from a vein, usually in your arm. The sample is then processed to measure the concentration of angiotensinogen in serum or plasma.
What Should You Expect Before the Test?
No special preparation is typically needed, but you may be asked to avoid certain medications or foods for a short time if instructed by your provider.
What Are Possible Results?
Results are reported as a concentration value, but specific reference ranges can vary by lab and clinical context. Your provider will interpret the results in relation to your overall health.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Angiotensinogen (Serum/Plasma)
Frequently asked questions
High levels of angiotensinogen may be linked to conditions like polycystic kidney disease or certain liver disorders. Low levels could be associated with rare genetic conditions or other metabolic issues. Always discuss results with your healthcare provider.
This test is usually not a routine screening test. It may be ordered periodically if you have a known condition affecting angiotensinogen levels or if it’s part of a specialized diagnostic evaluation.
Your results will be compared to standard values provided by your lab. Your healthcare provider will explain what the numbers mean in the context of your health and any potential actions needed.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy